On March 31, Label SJ stated, “Yesung is currently working on a solo album with the goal to release it in April.

[3] Ahead of the album’s release, he will pre-release a music video for “Hibernation”, a medium tempo ballad track with a soothing melody.

Its lyrics contain the sweet message of not wanting to leave one’s lover’s side because it is warmer than a cozy spring day on April 11.

[4] On April 13, Yesung revealed teasers, highlight medley and track list featuring Cho Kyu-hyun.

Additionally, in Japan, Thailand, Singapore, Indonesia, Hong Kong, Peru, Mexico, and Hungary, the album took first place in the pop album chart, while in Japan, Thailand, Singapore, Indonesia, Hong Kong, Peru, Chile, and Mexico, it placed No.